Lap tray



FIG. 1 is a top, front, and right side perspective view of a lap tray showing my new design, the broken lines representing a cup being shown for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front, elevational view thereof, this and the rear elevational view being of identical design; and,

FIG. 5 is a side elevational view thereof, this and the opposite elevational view being of identical design. 

The ornamental design for a lap tray, as shown and described. 